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prompt-injection-defense

100 / 100 · Low risk

Fine to try.

By seb1n/awesome-ai-agent-skills (GitHub) · coding · 254 stars · scanned at commit 75865a5

Threat-model and harden AI agents, RAG systems, assistants, and tool-using workflows against direct, indirect, stored, cross-agent, and multimodal prompt injection. Use when reviewing an agent architecture, isolating untrusted content, constraining tools and egress, protecting secrets, adding injection-focused tests, investigating a suspected injection incident, or documenting residual prompt-injection risk.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'prompt-injection-defense' ] || [ -L ~/.agents/skills/'prompt-injection-defense' ]; then echo 'A skill folder named prompt-injection-defense already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/seb1n/awesome-ai-agent-skills' "$d" && git -C "$d" checkout --quiet '75865a5d037a4cdaa7f409a4ec14ab9b0292920b' -- 'agent-security/prompt-injection-defense' && mkdir -p ~/.agents/skills && cp -R "$d"/'agent-security/prompt-injection-defense' ~/.agents/skills/'prompt-injection-defense' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'prompt-injection-defense' ~/.claude/skills/'prompt-injection-defense' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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